Carlo Gavazzi – EUA C 400 – 3-Phase Voltage/Sequence Control Relay, DIN-Rail

The Carlo Gavazzi EUA C  is a compact, DIN-rail mount relay that monitors three-phase voltage and phase sequence. It protects motors and equipment by detecting phase loss, asymmetry, over/undervoltage, and incorrect phasing, automatically disconnecting faulty supplies. Adjustable trip thresholds from – V (for  V systems) make it suitable for diverse industrial environments.

Key Features:

• Model: EUA C  (aka EUAC)  

• Function: Monitors voltage, phase sequence, and asymmetry; trips on faults

• Supply Range: Configurable dial: – V line-to-line for  V nominal systems ()

• Phase Sequence: Correct phase rotation required for operation

• Mounting: DIN-rail format; standard width